Edward D Barnett

US Patent:

41448111, Mar 20, 1979

Filed:

Dec 2, 1977

Appl. No.:

5/856781

Inventors:

Edward R. Barnett - Westminster CA

Assignee:

Beach Manufacturing Corporation - Huntington Beach CA

International Classification:

B41L 2734
B41F 3132

US Classification:

101349

Abstract:

A form roller compensator is provided for use in mounting a printing form roller in a publication printing apparatus in proper orientation relative to a printing cylinder. The form rollers in a printing machine control the amount of ink transferred to the printing surfaces of a printing cylinder for printing alphabetic and numerical characters and pictorial illustrations. The invention allows the amount of ink transferred by printing form rollers to be varied to compensate for the inordinately heavy or light supply of ink which results from pressure variations of the form rollers against impression cylinders. These pressure variations are caused by thermal expansion or contraction of the various rotating cylinders involved.